oil historical chart:

$
$石油指数ETF-美国(USO)$ $VelocityShares 3x Long Crude Oil ETN(UWTI)$ $原油指数ETF-ProSharesDJ-UBS两倍做空(SCO)$ $埃克森美孚(XOM)$ $英国石油(BP)$ 
$Direxion Daily Russia Bear 3X ETF(RUSS)$ $Direxion Daily Russia Bull 3X ETF(RUSL)$